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HomeMy WebLinkAbout2.0 Staff Report4rp_(DJ_t_J -~-·fb_o_ I BOCC 10/03/03 FJ PROJECT INFORMATION AND STAFF COMMENTS REQUEST: APPLICANT/ PROPERTY OWNER: CONSULTING ENGINEER: LOCATION: I. BACKGROUND Application for Site Approval for Construction or Expansion of a Lift Station and Force Main for Cerise Ranch Subdivision Wintergreen Homes, LLC I Mid-Valley Metropolitan District (El Jebel) Inter-Mountain Engineering, Ltd Cerise Ranch Subdivision on Highway 82 east of Carbondale, CO Cerise Ranch Subdivision was approved by the Board in 2000 and is memorialized in Resolution 2000-73. Cerise Ranch Subdivision is located along the north side of State Highway 82 approximately 5 miles east of Carbondale. The 301 acre property contains 68 lots ranging from 2 to 10 acres. Fourteen of the lots were approved for ADUs for a possible total of 82 units. The development was proposed to be completed in two phases. At present, 6 lots have been developed with single-family dwellings. The approvals required that all of the lots have Individual Sewage Treatment Systems (ISTS) to be maintained by the homeowners association (HOA). II. REQUEST Wintergreen Homes, LLC, is requesting approval from the Colorado Department of Public Health and Environment (CDPHE) for the construction of a lift station and force main in order to extend wastewater service provided by Mid-Valley Metropolitan District (hereinafter the "District") to the Cerise Ranch Subdivision. As this property is located in Garfield County, this application is being referred to the Board of County Commissioners for their recommendation. As mentioned above, Cerise Ranch Subdivision was designed so that each lot was served by an Individual Sewage Treatment Systems (ISTS) to be maintained by the HOA. Only 6 units have been constructed to this point. The Applicant proposes to obtain wastewater service from Mid-Valley Metropolitan District rather than provide wastewater treatment on each individual lot through ISTS. In order to accomplish this, the Applicant has decided to install gravity main lines that will flow to a proposed lift station to be located at the low point of the property and then boosted into the existing force main on the Dakota Subdivision which is currently connected to the Mid-Valley Metropolitan District. Three of the six constructed dwelling units will connect to the system and all new construction will connect to the system. The Mid-Valley Metropolitan District Wastewater Treatment Facility is located in El Jebel and currently provides service to the Dakota Subdivision which is directly adjacent to and east of Cerise Ranch Subdivision. III. PROJECTED SERVICE AREA The proposed gravity lines, lift station, and force main facility will serve the approved 68 lots within the Cerise Ranch Subdivision. The Mid-Valley Metropolitan District Wastewater Treatment Facility already exists and has served surrounding subdivisions including Dakota Subdivision for some time. IV. WATER AND SANITATION DISTRICTS The purpose of this application is to apply for wastewater treatment service from the existing Mid- Valley Metropolitan District Wastewater Treatment Facility. V. HAZARDS Inter-Mountain Engineering, Ltd. provided an analysis of the property regarding potential hazards and ultimately concluded the proposed lift station is not located in primary drainage pathways, the identified 100-year flood plain, wetlands or potential geologic hazard areas. Regarding mechanical I system failure, the Applicant states that a high level alarm will activate a phone dialer and call the on-call operator 24 hours/ day. VI. IMPLEMENTATION PLAN AND SCHEDULE The Applicant is presently poised to construct the improvements. In addition, based on the explicit conditions required within the approval (Resolution 2000-73), the Applicant will need to amend the preliminary plan to amend those conditions which are as follows: Condition No. 15: "Comment number 5 from Wright water Engineers which requires all ISTSs to be designed by a registered engineer." Condition No. 16: "As stated in the letter dated March 21, 200 from the Division of Water Resources, individual sewage treatment systems must be on the non-evaporative type unless otherwise requested and supporte3d by consumptive use estimates." The Applicant states that approval and construction of the system must occur soon, otherwise it will not happen at all. VII.COST The Applicant indicates the cost of the Force Main and Lift-station is approximately $203,000. VIII. RELATIONSHIP TO THE COMPREHENSIVE PLAN Objective 7.2 within Section 7.0 'Water and Sewer Services" states, "development located adjacent to municipalities or sanitation districts with available capacity in their central water I sewer systems will be strongly encouraged to tie into these systems." Further Policy 7.2 of the same section states: "Where logical, legal and economic extension of service lines from an existing water and/or sewage system can occur, the County will require development adjacent to or within a reasonable distance, to enter into the appropriate agreements to receive service. The burden of proofregarding logical, legal and economic constraints will be on the developer." As a result, Staff finds the proposal to tie into the existing Mid-Valley Metropolitan District Wastewater Treatment Facility is consistent with the direction provided on the Comprehensive Plan. IX. ROLE OF THE COUNTY COMMISSIONERS The Applicant is required to obtain a recommendation of approval, denial or no comment from the Garfield County Board of Health and County Board of County Commissioners and various other local and regional agencies. X. RECOMMENDATION I. Staff recommends that the Garfield County Board of Health recommend APPROVAL of the site application of the Mid-Valley Metropolitan District to serve the Cerise Ranch Subdivision. 2. Staff recommends that the Garfield County Board of County Commissioners recommend APPROVAL of the site application of the Mid-Valley Metropolitan District to serve the Cerise Ranch Subdivision.